Furnace



may 27, 1924 I 14%,5W

P. lsLEs FURNACE Filed April 2. 1923. 3 Sheets-Sheet 1 mania)? fiat? A6455,

Wz'fms'sasx a FURNACE Filed April 2. 1923 5 Sheets-Sheet 2 a E P J May 2?, W241 g 4g5 ggg P. ISLES FURNACE Filed April 2 1923 3 Sheets-Sheet 5 a r 4 Z fie-75519455,

@atented May 27, 122

UhillTEiD STATES rnrna EBLES, SWIS$VALE PENNSYLVANIA.

FURNACE.

Application filed April 2,

To all whom it may concern:

Be it known that 1, PETER lsLEs, a citizen of the United States, and resident of Swissvale, in the county of Allegheny and State of Pennsylvania, have invented certain new and llSQlHl improvements in Furnaces, of which the following is a specification.

This invention relates to open-hearth furnaces and more particularly to the framing for the main ortion of the furnace, and has "for one or its objects the provision of a framin structure for this class of furnaces that will be generally superior to those heretofore'used. I

Another object is to provide a framing in which the buckstays may be readily replaced without dismantling the furnace.

A further object is to provide a continuous girder support along the entire length of the furnace side wall, which will extend up to the door sills, thus forming a rigid support for this portion of the furnace.

A still further object is to provide novel bracing and anchoring means for the traming structure which will rigidly anchor and tie the several elements together.

The above and other objects willbe more fully brought out in the following specifications and illustrated in the accompanying drawings.

1n the drawings, Figure 1 is a top plan partly in section of an open hearth furnace embodying this invention.

Figure 2 is a side elevation of the same, partly in section. c

Figure 3 is a transverse sectional elevation on the line Ill-{illicit Figiine2.

Figure 4 is a transverse sectional elevation onthe line lV-IV of Figure 2.

Referring more particularly to the drawings the letter A. designates the body of the furnace as a whole, which comprises refractory side walls 2 and 3, end walls da'nd 5, top

and bottom walls 6 and 7 and port or dog on ways 12.

The refractory body of the furnace is sup- 1923. Serial no. name.

ported by a framing of novel construction comprising l-shaped base girders 14c and 15 along each side wall and short end girders 16 which extend along the end walls from the girders 14 and 15 to the dog houses 8 and 9. The girders 14, 15 and 16 are preferably plate girders and extend upwardly along the furnace walls to a point approximately on-a line with the bottom of the doorways 12 and form a base for the framing as a whole.

The girders 14, 15 and 16 are each provided with an anchor plate 18 which extends inwardly and is embedded in the bottom wall of the furnace, and anchor brace members 19 are secured to the girders adjacent their upper edges and extend downwardly and are secured to the anchor plates 18 so as to firmly anchor and support the girders.

The girders 1 1 and 15 are further sup ported and tied together at their ends by transverse tie beams 23 which extend under the furnace at each end and are secured to the bottom flanges of the girders adjacent their ends.

A plurality of buckstays 20 are spaced around the side and ends walls of the fur nace. The buckstays 20 have their lower ends bolted or otherwise secured to the-hpper flanges of the girders 1d, 15. and 16 and have their upper ends tied together by longitudinal beams 21 and transverse, beams 22. The transverse beams 22 are secured to the buckstays on opposite sides of the furnace. The buckstays 20 are arranged in groups consisting of two buckstays each, being spaccd apart and located adjacent) the center of each side wall, thus serving to support the middle portion of the turnace, and a group of four of the buckstays 20 is located adjacent the endsot the side walls 2' and 3 and other groups of tour of the buckstays 20 are located adjacent-each end of the end walls 1 and 5. The groups of i buckstays located adjacent the ends or each side and end wall serve as corner binders;

lhe buckstays of each of the abovegroups are secured together by tie plates 24 at points just above the root of the furnace, and diagonal brace rods 25 have one end secured in. the tie plates 24 and extend up andhave their other end secured to the transverse tie beams 22. Thus the center of the bucksta-ys are prevented from bulging and the roof thrust is amply taken care oi.

The doorways 12 are each provided with Elli) door frames 26 which have their sills supported on the top flange of the side girder 15, thus eliminating the necessity of separate supporting structures for these members.

A frammg constructed as above described. provides a more eflicient support for the refractory furnace body than the framing heretofore used, and has the added advantage of providing for the ready replacement of buckstays and corner binders without dismantling the whole or major portion of the furnace.

While I have illustrated and described only the preferred embodiment of my invention it will be understood that I do not wish to be limited to the exact construction shown, since various modifications may be made without departing from the scope of my invention as defined in the appended claims.

I claim:

1. In an open-hearth furnace having the usual bottom, side and top walls of refractory material, the side walls being provided with the usual door openings, a metallic supporting framework comprising longitu dinally disposed I-beam base girders extending continuously from end to end of said furnace side walls and extending upwardly to a point approximately on a line with the lower face of the door openings, anchor plates secured to the bottom. flanges of said girders and extending inwardly and being embedded in the bottom wall of said furnace, transverse tie beams extending under each end of said furnace and secured to the bottom flanges of said girders to prevent spreading thereof, anchor braces secured to said girders adjacent their upper edges and to said anchorplates to further support said girders, a plurality of buckstays spaced along the side walls of said furnace, said buckstays having their lower ends secured to the upper flanges of said girders and extending upwardly an appreciable distance above the top of said furnace, transverse top tie beams secured to the upper ends of said buclrstays and a diagonal tie rod secured to each of said bucksta-ys and extending upwardly to the top tie beam to further support said buolrstays.

2. In an open-hearth furnace having the usual bottom, side and top walls of refractor-y material, the side walls being provided with the usual door openings, a metallic supporting framework comprising longitudinally disposed I-beam base girders extending continuously from end to end of said furnace side walls and extending upwardly to a point approximately on a line with the lower face of the door openings, anchor plates secured to the bottom flanges of said girders and extending inwardly and being embedded in the bottom wall of said urnace, transverse tie beams extending asset is under each end of said furnace and secured to the bottom flanges of said girders to prevent spreading thereof, anchor braces secured to said girders adjacent their upper edges and to said anchor plates to further support said girders, a plurality of buckstays spaced along the side walls of said furnace, said buckstays having their lower ends secured to the upper flanges of said girders and extending upwardly an appreciable distance above the top of said furnace, door frames surrounding the doorways in said furnace side walls, said door frames being supported on and secured to the top flanges of said gfrders, and transverse means for tying the upper ends of the buckstays on the opposite sides of the furnace together.

3. In an open-hearth furnace having the usual bottom, side and top walls of refractory material, the side walls being provided with the usual door openings, a metallic sup-' porting framework comprising longitudinally disposed, I-beam base girders extend ing continuously from end to end of said furnace side walls and extending upwardly to a point approximately on a line with the lower face of the door openings, anchor plates secured to the bottom flanges of said girders and extending inwardly and being embedded in the bottom wall of said furnace, anchor braces secured to said girders adjacent their upper edges and to-anchor plates to support and tievsaid girders in position, a plurality of buckstays spaced along the side wallsof said furnace, said buckstays having their lower ends secured to the upper flanges of said girders, and extending upwardly an appreciable distance above the top of said furnace, door frames surrounding the doorways in said furnace side walls, said door frames being supported on and secured to the top flanges of said girders and transverse means for tying the upper ends of the buckstays on the opposite sides of the furnace together.

In an open-hearth furnace having the usual bottom, side and top walls of refractory material, the side walls being provided with the usual door openings, a metallic supporting framework comprising longitudi nally disposed I-beam base irders extenc ing continuously from end to end of s d furnace side walls andextending upwardly to a point approximately on a line with lower face of the door openings, anchor L2 plates secured to the bottom flan "es of said girders and extending inwardly and being embedded in the bottom wall of said furnace, anchor braces secured to said girders adjacent their upper edges and to anchor plates to support and tie said girders in position, a plurality of buclrstays spaced along the side walls of said furnace, said buckstays having their lower ends secured to the upper flanges of said girders, and

ill

Oil

sesame ing continuously from end to end of said,

furnace side walls and extending upwardly to a point approximately on a line with the lower face of the door openings, anchor plates secured to the bottom flanges of said girders and extending inwardly and being embedded in the bottom wall of said furnace, anchor braces secured to said girders adjacent their upper edges and to anchor plates to support and tie said girders in position, a plurality of buckstays spaced along the side walls'of said furnace, said buckstays having their lower ends secured to the upper flanges of said girders, and extending upwardly an appreciable distance above the top of said furnace, door frames surrounding the doorways in said furnace side walls, said door frames being supported on and secured to the top flanges of said girders, transverse top tie beams secured to the upper ends of the bucksta s on the op posite sides of the furnace an diagonal tie rods secured to each of said buckstays and extending upwardly to the top tie beam to further support said buckstays and prevent bulging thereof.

6. In an open hearth furnace having the usual bottom, side and top walls of refractory material, the side walls being provided with the usual door openings, a metallic supporting framework comprising longitudinally disposed base irders extending from. end to end of said .urnace side walls and extending upwardly to a point approximately on a line with the lower faceof the door openings, anchor plates secured to said girders and extending inwardly and being embedded in the bottom Wall of said furnace, transverse tie beams extending under each end of said furnace and secured to said girders to prevent spreadin thereof, anchor braces secured to said gir ers and to said anchor plates to further support said girders, a plurality of buckstays spaced along the side walls oi said furnace, said buckstays havin their lower ends secured to said girders an extendingupwardly an appreciable distance above the top of said furnace, transverse top tie beams secured to the upper ends of said buckstays and a diagonal tie rod secured to each of said buckstays and extendingupwardly to the top tie beam to further support said buckstays.

In testimony whereof I have hereunto set my hand.

PETER ISLES. 

